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条款31:将文件间的编译依存关系降至最低(Minimize compilation dependencies between files)
NOTE1: 1.支持“编译依存性最小化”的一般构想是:相依于声明式,不要相依于定义式。基于此构想的两个手段是Handle classes 和 Interface classes。 2.程序库头文件应该以“完全且仅有声明式”(full and declaration-only forms...
分类:其他好文   时间:2015-09-17 01:12:53    阅读次数:215
[LeetCode] Expression Add Operators 表达式增加操作符
Given a string that contains only digits0-9and a target value, return all possibilities to add operators+,-, or*between the digits so they evaluate to...
分类:其他好文   时间:2015-09-16 21:59:22    阅读次数:478
DNS(bind)服务
1.overviewa.packages:bind#主程序bind-libs#库bind-utils#查询工具bind-chroot#chrootb.port:udp(53)-->request,tcp(53)-->synchronizedatebetweenmasterandslaveserverc.script:/etc/init.d/namedd.configurationfile:/etc/named.conf#主配置文件/etc/named/#额外的配..
分类:其他好文   时间:2015-09-16 16:04:23    阅读次数:279
计算广告 读书笔记 计算广告的核心问题
1. 计算广告的核心问题Andrei Broder给出了计算广告这个课题的核心研究挑战:"Find the best match between a given user in a given context and a suitable advertisement."《计算广告》这本书结合市场发展...
分类:其他好文   时间:2015-09-16 15:42:07    阅读次数:299
浏览器中的刷新
http://weizhifeng.net/difference-between-f5-and-ctrl-f5.html说明在不同的浏览器中F5和CTRL-F5的行为是不一样的,但是他们的主要行为还是非常相似的,以下结果是在FF,IE,Opera和Chrome中进行过测试得出。F5使用缓存,并且只有...
分类:其他好文   时间:2015-09-15 18:26:06    阅读次数:134
iOS时间间隔判断
如何计算两个NSDate之间的时间间隔呢?timeIntervalSinceDate:Returns the interval between the receiver and another given date.- (NSTimeInterval)timeIntervalSinceDate:(N...
分类:移动开发   时间:2015-09-15 12:51:46    阅读次数:276
sql 分页
select * from (select *,row_number() over(order by createon desc) as rownum from AKCatLog ) as t where t.rownum between 0 and 10select * from AKCatLo....
分类:数据库   时间:2015-09-14 22:34:31    阅读次数:170
What is an intuitive explanation of the relation between PCA and SVD?
What is an intuitive explanation of the relation between PCA and SVD?36 FOLLOWERSLast asked:30 Sep, 2014QUESTION TOPICSSingular Value DecompositionPri...
分类:其他好文   时间:2015-09-14 20:50:38    阅读次数:416
统计任意两个正整数之间所有奇数的和
题目来源: Conditions and Loops 1 #!/usr/bin/python3 2 # sum all odds between two positive integer 3 4 a = int(input("Please input one positive integer > ....
分类:其他好文   时间:2015-09-12 12:04:54    阅读次数:139
SQL的常用语句
select * from g_members where id between '16' and '31' order by id desc 倒序排列select * from g_members_thirdparty where uid in(select id from g_members w...
分类:数据库   时间:2015-09-11 15:58:46    阅读次数:160
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